Fleece Performance's Cheetah turbochargers consist of upgraded internals within the factory compressor and turbine housings. For example, our LBZ's stock Garrett charger is now equipped with a 68mm compressor wheel inducer (the compressor wheel is actually derived from a Garrett 4094R and is 67.8mm in diameter), and retains the factory variable nozzle technology (VNT), which allows the turbo to still spool like stock. It also has upgraded shaft bearings and thrust bearings.
We'll keep you posted as to how Project Street-Max does on the dyno, and we'll get a sound clip or two together for you. This thing sounds wicked.